FastPass is a virtual queue system used at various theme parks, primarily by Disney. It allows guests to reserve access to certain attractions in advance, reducing wait times. Instead of standing in long lines, visitors can enjoy other activities while waiting for their designated time to ride. To use FastPass, guests can select specific attractions and times through the park's app or at designated kiosks. Once their time arrives, they can enter a shorter line, making the experience more enjoyable. This system helps manage crowd flow and enhances overall visitor satisfaction at the park.